National Atmospheric Deposition Program

The National Atmospheric Deposition Program (NADP) serves science and education and supports informed decisions on air quality issues related to precipitation chemistry. The NADP has been monitoring precipitation chemistry since 1978. NADP is a cooperative effort between many different groups, including federal, state, tribal and local governmental agencies, education institutions, private companies, and non-governmental agencies. It was established in 1977 under State Agricultural Experiment Station (SAES) leadership to address the problem of atmospheric deposition and its effects on agricultural crops, forests, rangelands, surface waters, and other natural and cultural resources. 

Website: http://nadp.slh.wisc.edu/ 

The NADP Program Office is located at the Wisconsin State Laboratory of Hygiene at the University of Wisconsin, Madison.